Resonance Frame

A necklace of brass and dark wire — the pendant is a latticed sphere, concentric rings rotating around a hollow center, like a dyson sphere scaled down to fit in a palm. At the center of the sphere is an empty socket, sized exactly for an Aetherstone. Without one, it just hangs there — an intricate shell around nothing.

Stolen by Pibble from her former state-sponsored research lab. Inert without a slotted Aetherstone. Swap stones to change modes.